Home / 15,919.05-23,875.52-15,128.80

Finding the Fourth Proportional to 15,919.05, 23,875.52 and 15,128.80

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Solution

The fourth proportional to 15,919.05, 23,875.52 and 15,128.80 is: 22,690.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.05 : 23,875.52 = 15,128.80 : x
  2. Step 2: Convert to fraction form
    15,919.05/23,875.52 = 15,128.80/x
  3. Step 3: Cross multiply
    15,919.05x = 23,875.52 × 15,128.80
  4. Step 4: Simplify right side
    15,919.05x = 361,207,831.64
  5. Step 5: Solve for x
    x = 361,207,831.64/15,919.05
  6. Step 6: Final answer
    x = 22,690.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.